Dear Mrs Peranteau
Thank you very much for your information. They do help indeed as it justifies previous consultation I had.
Konstantinos Chatziantoniou
Textile Conservator
Museum of Islamic Art
Doha
Cornice Street
P.O.Box 2777
Qatar
----------------------------------------
> Date: Thu, 29 May 2008 11:13:02 -0400
> From: [log in to unmask]
> Subject: Re: Pressure Mounting
> To: [log in to unmask]
>
> Hi Textilians,
>
> When I was a student I did some preliminary experiments that attempted
> to show how effective pressure mounts were at buffering fluctuations in
> RH. An additional useful reference not on the list that Elpida just
> circulated:
>
>
> Dierdre Windsor, Linda Hillyer, Dinah Eastop "The Role of Pressure
> Mounting in Textile Conservation: Recent Application of US Technique" in
> Preprints of the 13th Triennial Meeting ICOM-CC, vol II. Rio (2002) pp.
> 755-760.
>
>
> There were a number of problems with the experimental technique that I
> used and unfortunately I was not able to get a very good set of data
> points. With the set up used, it was difficult to obtain data on how
> well the pressure mount could act as a buffer during extended periods of
> high humidity, and how well it could buffer repeated changes.
> Also, the type of data logger used was a HOBO unit, about ˝” thick,
> rather than the sword probe used by Windsor et al., so it had to be
> nested in a layer of Volara between the solid support and the batting,
> below the Plexiglas. This obviously does not imitate as well the
> position of the textile in the mount. So in conclusion, there are at
> least three aspects of the set up I would have changed: I would have
> used a sword probe inside the pressure mount, put the whole assembly
> into a chamber much larger than the assembly, and would have engineered
> it so that the data logger/pressure mount assembly could be subjected to
> fluctuations in RH without the need to transfer it in and out of the
> chamber.
>
> That said, during a 6-day period in the chamber, the RH inside the mount
> did rise from 55% RH of the lab environment to the 65% RH inside the
> chamber, seeming to suggest that the pressure mount was not able to
> completely buffer changes in RH. It seemed to do better during shorter
> cycles. I wondered at the time whether this was because a good deal of
> moisture was absorbed by the paper Tycore panel, and whether this
> phenonmenon might create problems in places where there would be
> extended periods of high humidity, mold growth, etc. At any rate, there
> seems to be a lot of room for additional research in this area.
>
> Also, with regard to Konstantinos's question, I was taught to pressure
> mount (fragile Islamic textile fragments) with polyester felt; cotton
> was thought to not have adequate loft/resilience for the job.
>
> Hope this helps,
>
> Anne Peranteau
>
> -----Original Message-----
> From: Textile Conservators [mailto:[log in to unmask]] On Behalf
> Of 11th EBA E_CHRISTOPHORIDOU
> Sent: Thursday, May 29, 2008 3:13 AM
> To: [log in to unmask]
> Subject: Re: Pressure Mounting
>
>
> Dear Konstantine
>
>
>
> A very good colleague (textile conservator) and friend Morwena Stephens
> alerted me, some years ago, on a workshop on “Contact/pressure mounting”
>
> which was run by the UKIC and the British Museum(?). If I remember
> correctly, Morwena told me that the workshop was initially run in the
> USA.
> I am sure this workshop has produced quite a lot of very useful and
> relevant
> info on the subject, but I am afraid this is all I know about it.
> However,
> I am attaching a short reading list which you might find helpful.
> Moreover,
> product information sheets from manufacturing companies can provide very
>
> useful data, which worth looking at.
>
>
>
> Good luck and best regards from home!
>
>
>
> Elpida Christophoridou
>
> Textiles’ Conservator
>
> 11th Ephorate of Byzantine Antiquities
>
> Hellenic Ministry of Culture
>
>
>
>
>
> ----- Original Message -----
> From: "K Hatziantoniou"
> To:
> Sent: Friday, May 23, 2008 2:05 PM
> Subject: Re: Pressure Mounting
>
>
>> Dear All
>>
>> I need to pressure mount several fragile islamic textiles, of
>> relatively
>> small dimensions, for permanent exhibition in the museum environment
> with
>> relatively stable RH and temperature. I need further information on
> which
>> material to use for supporting the textile underneath the final cover
> of
>> the mounted board. Polyester felt, cotton dommette or even other
> material?
>> I am not experienced in pressure mounting and I worry about the
>> development of micro-climate in a country with very high humidity and
>> temperature.
>>
>> Many thank you
>>
>> Konstantinos Chatziantoniou
>> Textile Conservator
>> Museum of Islamic Art
>> Doha
>> Qatar
>> _________________________________________________________________
>>
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